create_scalar_view()

template<typename T >
requires std::is_arithmetic_v<T>

std::span< const T > MayaFlux::Kakshya::DataAccess::create_scalar_view ( ) const

private

Definition at line 326 of file DataAccess.hpp.

{
    return std::visit([this](auto& vec) -> std::span<const T> {
        using StorageType = typename std::decay_t<decltype(vec)>::value_type;
 
        if constexpr (std::is_same_v<StorageType, T>) {
            return std::span<const T>(vec.data(), vec.size());
        } else if constexpr (std::is_convertible_v<StorageType, T>) {
            size_t required_bytes = vec.size() * sizeof(T);
            void* cache_ptr = ensure_conversion_cache<T>(required_bytes);
 
            T* cache_data = static_cast<T*>(cache_ptr);
            std::ranges::transform(vec, cache_data,
                [](auto val) { return static_cast<T>(val); });
 
            return std::span<const T>(cache_data, vec.size());
        } else {
            error<std::invalid_argument>(
                Journal::Component::Kakshya,
                Journal::Context::Runtime,
                std::source_location::current(),
                "Cannot convert storage type {} to requested type {}",
                typeid(StorageType).name(),
                typeid(T).name());
        }
    },
        m_variant);
}

References MayaFlux::Journal::Kakshya, m_variant, and MayaFlux::Journal::Runtime.